Aero Precision Low Profile Gas Block .750" - Nitride

Manufactured by Aero Precision
SKU: APRH101205C
MPN: APRH101205C
Manufactured by Aero Precision
2 Reviews

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The Aero Precision low profile gas block is manufactured from hardened 4140 steel with a corrosion resistant salt bath nitride finish to protect it for the entire lifespan of your rifle. With a low-profile design to fit under almost any free float handguard on the market, so you can fully customize your rifle. These AR-15 gas blocks are made in the U.S.A. and include a set of steel 10-32 x 3/16 knurled cup point set screws for securely attaching them to your barrel. With precise machining tolerances, you can expect perfect match to your barrel with .750” gas block journal and is compatible with all rifle and carbine length gas tubes. The time is now to upgrade your AR-15 and the Aero Precision low profile gas block is the solution if you plan on free floating your barrel.

NOTE: Aero Precision does not recommend the use of red thread locker on the set screws. If you decide to use thread locker, they recommend using a non-permanent variety.

  • Machined from 4140 steel
  • .750” gas seat diameter
  • Set Screws: 10-32x3/16 knurled cup point
  • .485” set screw spacing for dimpled barrels
  • Salt bath nitride finish
  • Low profile for easy fitment
  • Roll pin not included.
  • Weight: 1.6 oz

Aero Precision takes some of the most state of the art manufacturing techniques and equipment derived from their work in the aerospace industry and applies it to their products in the firearms industry. They have utilized their knowledge from years of building aircraft components to design and engineer AR-15 handguards, receiver sets, scope mounts, and more. They treat every product as if it were a precision flying machine and adhere to strict quality standards to ensure law enforcement, military, and civilian customers receive a product they can rely on.
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BrandAero Precision
FinishSalt Bath Nitride
MaterialSteel - 4140 Chrome Moly
Size.750 in
TypeSet Screw
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

2 reviews

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These mil spec gas blocks get the job done when looks or fashion don't matter. I have never had a customer complain on any of my builds with a AERO PRECISION LOW PROFILE GAS BLOCK. They get her done without any gas problems and you don't have to spend a fortune just for a name you do not see. Just make sure to get the right size for the barrel you are installing on. There are a few different sizes.

Built like a tank.


Super strong construction and finish. These are the only ones i use. Worth every penny. Don't buy junk, get one of these. you won't be sorry.